A2009 pew research center survey asked a sample of 1,504 adults living in the united states for their opinions on recent technological advancements, such as online shopping, cell phones, and social networking. respondents categorized each advancement as a change for the worse, hasn’t made much difference, a change for the better, or don’t know.
a summary of respondents' opinions on blackberries/iphones follows:
response percent of respondents
change for the worse 25
hasn't made much difference 12
change for the better 56
don't know 7
make a bar graph of the relative frequency distribution of the responses.